import java.util.ArrayList;
import java.util.List;

/**
 * Created by Menx on 2019/3/18.
 */
class Solution {
    /*public int lengthOfLongestSubstring(String s) {
        List<Character> list = new ArrayList<>();
        for(int i = 0;i < s.length();i ++){
            if(list.contains(s.charAt(i))){
                list.
            }else{
                list.add(s.charAt(i));
            }
        }
    }*/
}
